Out of Core option again

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PetrT
Posts: 51
Joined: Sun Dec 02, 2018 6:13 pm

Out of Core option again

Post by PetrT » Fri Jun 12, 2020 5:46 pm

Hi
Get strange result for interior render
8:21 Out of Core option on 16 supersamples
and
9:59 Out of Core option off 512 samples
Out of Core option is more faster than standart render mode?

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Dade
Developer
Posts: 4380
Joined: Mon Dec 04, 2017 8:36 pm
Location: Italy

Re: Out of Core option again

Post by Dade » Fri Jun 12, 2020 9:03 pm

PetrT wrote:
Fri Jun 12, 2020 5:46 pm
Get strange result for interior render
8:21 Out of Core option on 16 supersamples
and
9:59 Out of Core option off 512 samples
Out of Core option is more faster than standart render mode?
I assume you have an halt condition of 512 samples per pixel in both case. Indeed, the result looks strange, can you post a test scene ?
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PetrT
Posts: 51
Joined: Sun Dec 02, 2018 6:13 pm

Re: Out of Core option again

Post by PetrT » Fri Jun 12, 2020 9:19 pm

ok i ll do it later

PetrT
Posts: 51
Joined: Sun Dec 02, 2018 6:13 pm

Re: Out of Core option again

Post by PetrT » Sat Jun 13, 2020 7:25 am

https://yadi.sk/d/nimVeZgCWIS6Ag
it is too big
last test
1:14 sek (Out of Core on) 128
1:30 sek (Out of Core off) 128
OutCoreOn.png
OutCoreOff.png
Win7 GTX1070 LuxCore(12.06)

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Dade
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Posts: 4380
Joined: Mon Dec 04, 2017 8:36 pm
Location: Italy

Re: Out of Core option again

Post by Dade » Sun Jun 14, 2020 9:38 am

PetrT wrote:
Sat Jun 13, 2020 7:25 am
last test
1:14 sek (Out of Core on) 128
1:30 sek (Out of Core off) 128
I'm getting the same rendering time with or without OoC option On/Off, about 26secs on my RTX 2070 Super. The scene is missing the required texture maps but I doubt that it would make any difference.

Your result may be related to some specific hardware characteristic of the GTX 1070, like OoC option fitting well, its work-set, in some hardware cache, etc.

As explained in viewtopic.php?f=5&t=2121, Random/Sobol sampler: "Out-of-Core" mode has more cache friendly behavior (at the cost of not being progressive at all so it isn't good for previews, etc.).
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